How Much Does Business Phone Line Installation Cost? [2025 Data]

Normal Range: $154 - $666

Business phone line installation costs $154 to $666, with most businesses paying $407. Your price depends on the number of lines, building type, and system complexity.

How we get this data
woman talking on house phone
Photo: digitalskillet1 / Adobe Stock Photography
woman talking on house phone
Photo: digitalskillet1 / Adobe Stock Photography
Cost Insights
  • Business phone line installation involves adding wired or digital phone connectivity throughout your workspace.

  • The main cost drivers are labor, wiring, and necessary hardware, with prices varying by complexity and number of lines.

  • Investing in new or upgraded phone lines can streamline communication and support future business growth.

  • Professional installation ensures your system meets local codes and delivers reliable, high-quality service.

  • Consider system scalability and future needs when planning your installation to maximize value and minimize future expenses.

This article was created using automation technology and thoroughly fact-checked and edited by an Angi Editor in accordance with our AI policy.

Business phone line installation cost averages $407, with a range from $154 to $666 depending on your building size, number of lines, and system type. Per line, expect to pay $100 to $250 for installation. Understanding these costs helps you budget for reliable business communications.

A well-planned phone system supports daily operations and can be tailored to your company’s needs. Let’s explore what influences business phone line installation cost and how to get the most value for your investment.

Business Phone Line Installation Cost Factors

Several factors influence the total business phone line installation cost. Let’s break down the main contributors so you can better anticipate your project’s price.

Project Size

The size and scope of your business phone line installation project play a major role in determining total cost. The number of lines you need directly affects materials, labor, and time required. A single-line installation for a small office is much less complex than wiring a multi-floor building with dozens of lines.

Larger buildings or those with challenging layouts, such as warehouses or older structures, often require more extensive cabling, additional hardware, and more labor hours. New construction projects tend to be less expensive per line because access is easier and walls are open, while retrofitting existing spaces may require extra effort to fish wires through walls or ceilings.

Project SizeDescriptionCost Range
Single line, small officeOne phone line in a compact workspace$350–$500
Multi-line, small office2 to 4 lines, standard office environment$500–$900
Multi-floor office5 to 20+ lines, multiple rooms/floors$900–$1,500
Warehouse/large facilityExtensive wiring, challenging access$1,200–$2,500

Line Type

Choosing the right type of phone system is crucial for both functionality and cost. There are several main types: traditional landline (POTS), digital, VoIP, and hybrid systems. Each has unique installation needs that impact your final price.

Traditional landlines use standard copper wiring, which is reliable but less flexible. Digital systems convert voice to data for clearer calls and more features, while VoIP (Voice over Internet Protocol) uses your internet connection for calls, often requiring upgraded network cabling. Hybrid systems combine features of multiple types for increased scalability.

Upgrading from analog to digital or VoIP may involve higher upfront costs for new hardware and wiring, but these systems offer advanced features and future-proofing.

System TypeDescriptionProsCons
Traditional landlineStandard copper wiring, analog signalsReliable, simple setupLimited features, less scalable
DigitalConverts voice to digital dataImproved clarity, extra featuresNeeds compatible hardware
VoIPUses internet/network for callsAdvanced features, flexible, scalableDependent on internet quality
HybridMix of analog and digital/VoIPCustomizable, future-readyMore complex installation

Location

Where your business is located impacts installation costs. Labor and materials cost more in urban and high cost-of-living regions. Rural areas may have lower rates but limited access to specialized technicians. The specific area within your building also matters—installing lines in main offices is easier and less expensive than wiring remote warehouses or hard-to-access spaces.

Building layout and accessibility influence labor time and equipment needs. Older buildings with thick walls or limited cable routes can increase the business phone line installation cost.

Labor

Labor is one of the largest components of business phone line installation cost. Professionals involved may include telecom technicians or IT specialists. Standard hourly rates range from $75 to $150, with minimum service fees of $100 to $250 per visit, which may not include electrical work.

Labor costs rise with project complexity, such as after-hours or emergency installations, or when integrating new lines with existing systems. Troubleshooting, system upgrades, or extensive planning can further increase labor expenses.

Permits

Permits are sometimes required for commercial phone line installations, especially in larger buildings or where local codes dictate. Permit fees range from $50 to $200, depending on your municipality and the scope of work. Some projects may also require inspections to confirm code compliance, which can add another $50 to $150 to your total cost.

Additional Features

Advanced features can enhance your phone system but also raise installation costs. Options like call routing, voicemail, intercom, or conference calling may require specialized hardware or extra wiring. Adding more jacks, wall plates, or integrating with security and access control systems will increase material and labor costs. Upgrading to smart or cloud-based systems often involves additional upfront expenses for compatible hardware and configuration.

Ongoing Business Line Costs

Beyond the basics, there are several ongoing and supplemental costs to keep in mind for a business phone line installation.

Warranties

Many installers offer warranties for hardware and installation, costing $50 to $300 depending on coverage. Warranties cover parts, labor, and system performance for one to three years. Investing in a warranty can protect you from unexpected repair costs and provide peace of mind.

Operating Costs

Monthly service fees vary by system type—landlines may cost $30 to $60 per line, while VoIP and digital systems range from $20 to $50 per user. Maintenance contracts or support agreements add $100 to $500 per year, depending on system complexity. Utility or network costs for internet-based systems should also be considered.

Maintenance

Routine maintenance is important for system reliability. Annual maintenance costs run between $100 and $400, covering tasks like cleaning, testing, minor repairs, and software updates. Periodic upgrades or replacing outdated equipment may be needed every few years, with costs depending on system type.

Taxes

Sales tax on materials and labor varies by state and locality, between 5% and 10%. Some areas may also require special telecommunications taxes or fees for business systems.

Insurance

Commercial installations may require insurance coverage for phone system equipment. Insuring your system costs $50 to $200 per year, depending on value and location. Proper insurance ensures your investment is protected against theft, damage, or other unexpected issues.

DIY Business Phone Line Installation vs. Hiring a Pro

Some business owners consider installing phone lines themselves to save on labor costs. DIY installation may cost $50 to $200 per line for materials and tools, but requires time, technical skill, and the right safety equipment.

While you can save on labor, DIY installation comes with risks—improper wiring can lead to code violations, unreliable service, or costly troubleshooting. The project may take several hours to several days, depending on your experience and the number of lines. For complex systems or larger offices, hiring a local phone line pro is the best way to ensure safe, reliable installation.

ScenarioCost RangeNotes
DIY, single line$50–$200Materials and basic tools only
DIY, multi-line$150–$500Increased complexity, more materials
Professional install$350–$1,200Includes labor, materials, warranty, support

Business Phone Line Replacement vs. Repair

When your business phone lines are malfunctioning, deciding between repair and replacement is key. Minor wiring issues or single-line problems can often be repaired for $75 to $250, especially if parts are still under warranty.

Replacement is recommended for outdated systems, frequent failures, or when you need to expand capacity. A full system replacement can cost $500 to $2,000 or more, depending on scope. Use the 50% rule: if repair costs exceed half the price of a new system, replacement is the better investment.

For example, repairing a single faulty line might cost $150, while replacing an aging multi-line system could run $1,000. If you’re spending $600 on repairs for a $1,000 system, it’s time to upgrade.

Does a Business Phone Line Add Value to Your Home?

Installing or upgrading business phone lines adds value to commercial properties by improving communication efficiency and supporting future growth. Modern phone systems make daily operations smoother and can increase property value, especially when compared to other infrastructure upgrades.

Value is influenced by system safety, reliability, and scalability. Universal design features and accessibility improvements also contribute to long-term benefits. A well-designed system looks professional and provides functional improvements that matter to employees and clients alike.

Tips to Reduce Cost While Installing a Business Phone Line

Let’s look at some practical ways to keep the cost to install a business phone line budget-friendly:

  • Get multiple quotes from qualified installers for competitive pricing.

  • Choose only essential features to avoid unnecessary add-ons.

  • Schedule installation during off-peak times to reduce labor costs.

  • Consider partial DIY for simple tasks (e.g., moving furniture, prepping walls).

  • Opt for scalable systems to minimize future upgrade costs.

  • Reuse existing wiring or hardware when possible.

  • Bundle installation with other IT or electrical projects for discounts.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.

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